5e483633f3
After the introduction of the Proxy builtin object there was a possibility to traverse the prototype chain with an invalid object. The prototype was freed before it's data/properties were queried resulting in accessing invalid information. By forcing the allocator to always do a gc (`--mem-stres-test=on` build option) it was possible to trigger the issue without complicated tests. New internal method: * `ecma_op_object_get_prototype_of` which always returns the prototype of an object and the return value must be freed (if it is valid). Updated prototype chain traversing in: * `jerry_object_get_property_names` * `ecma_builtin_object_prototype_lookup_getter_setter` * `ecma_op_function_has_instance` * `ecma_op_function_get_super_constructor` * `ecma_op_object_is_prototype_of` * `ecma_op_object_enumerate` Removed method `ecma_proxy_object_prototype_to_cp` JerryScript-DCO-1.0-Signed-off-by: Peter Gal pgal.usz@partner.samsung.com
JerryScript: JavaScript engine for the Internet of Things
JerryScript is a lightweight JavaScript engine for resource-constrained devices such as microcontrollers. It can run on devices with less than 64 KB of RAM and less than 200 KB of flash memory.
Key characteristics of JerryScript:
- Full ECMAScript 5.1 standard compliance
- 160K binary size when compiled for ARM Thumb-2
- Heavily optimized for low memory consumption
- Written in C99 for maximum portability
- Snapshot support for precompiling JavaScript source code to byte code
- Mature C API, easy to embed in applications
Additional information can be found on our project page and Wiki.
Memory usage and Binary footprint are measured at here with real target daily.
The latest results on Raspberry Pi 2:
IRC channel: #jerryscript on freenode Mailing list: jerryscript-dev@groups.io, you can subscribe here and access the mailing list archive here.
Quick Start
Getting the sources
git clone https://github.com/jerryscript-project/jerryscript.git
cd jerryscript
Building JerryScript
python tools/build.py
For additional information see Getting Started.
Documentation
Contributing
The project can only accept contributions which are licensed under the Apache License 2.0 and are signed according to the JerryScript Developer's Certificate of Origin. For further information please see our Contribution Guidelines.
License
JerryScript is open source software under the Apache License 2.0. Complete license and copyright information can be found in the source code.
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.